Replication policy management and scheduling technique of a files service

A non-transitory computer readable medium including program instructions for execution on a processor, the program instructions configured to:

• translate a main replication policy for replicating data from source file system (FS) sites to one or more target FS sites into a plurality of sub-policies for execution at corresponding source FS sites;
• create, for each sub-policy, a storage location mapping of top-level directories (TLDs) for the source FS sites to corresponding TLDs of the target FS sites;
• determine files of the source FS sites that have changed blocks based on block-level snapshot deltas at the source FS sites;
• filter, at each source FS site, the changed files according to a customer-provided filter;
• and
• execute the sub-policies at the source FS sites to transmit the changed blocks of the filtered changed files to the target FS sites.

An apparatus comprising:

• a network connecting nodes of source file system (FS) sites to one or more target FS sites, each node having a processor configured to execute program instructions to:
• translate a main replication policy for replicating data from the source FS sites to the one or more target FS sites into a plurality of sub-policies for execution at corresponding source FS sites;
• create, for each sub-policy, a storage location mapping of top-level directories (TLDs) for the source FS sites to corresponding TLDs of the target FS sites;
• determine files of the source FS sites that have changed blocks based on block-level snapshot deltas at the source FS sites;
• filter, at each source FS site, the changed files according to a customer-provided filter;
• and
• execute the sub-policies at the source FS sites to transmit the changed blocks of the filtered changed files to the target FS sites.